¡Alto! Frontera

A Puerto Rican tourist tries to smuggle 25 kilos of ecstasy pills into Arturo Benítez International Airport, in Chile. In Bogota, an agent finds a metallic decoration hiding liquid cocaine.

In Santa Cruz de la Sierra, Bolivia, agents detain a group of 15 passengers suspected of being part of a network that takes illegal immigrants to Spain. In Colombia, canine agent Sombra finds hidden cocaine.

Las Maras and Barrio 18 look for recruits for their drug-trafficking network among the people crossing the border in the south of Mexico. In Chile, agents of Arturo Benitez International Airport stop a Peruvian tourist.

The thermal cameras detect Colombian immigrants crossing a mined field in the Chilean desert; a mother traveling with her young child arouses suspicions in Viru Viru International Airport, in Bolivia.

In Colombia, police dog Sombra points at a package of creams and deodorants that contained small plastic balls with cocaine. Agents arrest a couple of Chilean entrepreneurs in the Tacna-Arica border.

Mexico, Bolivia, and Colombia put a halt to drug trafficking, while Peru and Brazil's customs departments go after gun trafficking.